Narrative:

Enroute; about 180 miles from our destination; we received an ACARS message from dispatch. The message advised that our ZFW and tow were wrong. Our original manifest showed our ZFW was 110;966 and tow 125;162. The correct weights were 112;263 and 126;459.I don't think I need to explain the danger of incorrect weights. From performance/safety standpoint to legalities; this scenario can lead to disaster. Vigilance in weight and balance calculation cannot be underestimated.

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Original NASA ASRS Text

Title: A B737-700 flight crew was advised during their flight that their weight manifest data was understated by a little less than one percent.

Narrative: Enroute; about 180 miles from our destination; we received an ACARS message from Dispatch. The message advised that our ZFW and TOW were wrong. Our original manifest showed our ZFW was 110;966 and TOW 125;162. The correct weights were 112;263 and 126;459.I don't think I need to explain the danger of incorrect weights. From performance/safety standpoint to legalities; this scenario can lead to disaster. Vigilance in weight and balance calculation cannot be underestimated.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.